Hi, My tabs are organized in groups of topics. Usually, I have a "tab group" button that appears on the tab bar, to open the "panorama" and switch between groups. I recently noticed that if I have more than one tab row, this button does not show up. I tried the View > Toobars > Customize menu, but strangely enough, when this contextual window opens, the tab group button suddenly reappears on the tab bar of the main window, and of course is not listed in the customize menu. As soon as I leave the menu, the button disappears from my tab bar :-( If I switch (CTRL+Shift+E) to the panorama and select a group with a few tabs (so that they fit on one line in the tab bar), then my tab group button is visible again. I suppose I can leave with the keyboard shortcut, but nevertheless I'd like to restore that button right. Any help appreciated! Thx.